I've been to his chicken restaurant he started in his 2nd movie, Holy Chicken, was pretty good. It is only 15-20 miles from me in Ohio. It only lasted 1 yr or so then closed tho.
There are very few people I just have just an immense dislike of and he's one of those very few people, the only other example is Gene Simmons. My musician uncle on my mother's side of the family actually met Gene once during some event and said he was the most unpleasant person to be around.
And those verbs existed long before the 70s, check Google ngram. No they aren't slang.